How to Spot Twitter Spam

A few weeks ago I wrote about my disdain for companies and business who just automate their Twitter accounts. They pay a service to auto-follow and mention thousands of people just to get some followers themselves. I find this practice and the services that allow users to do this pretty disgraceful.
Today, an account started following @crossingonline (The Official Twitter account of The Crossing Church) that looked like a fellow church. I was going to immediately follow them back when I took a glance at their timeline: spam. You can see from the screenshot: they were automating their account to follow / follow back. Let's be real, who cares how many followers you have if there's no engagement, interaction and community? Don't play this game.